if(TBB_FOUND AND NOT TARGET CGAL::TBB_support) if(NOT TARGET Threads::Threads) find_package(Threads REQUIRED) endif() add_library(CGAL::TBB_support INTERFACE IMPORTED) set_target_properties(CGAL::TBB_support PROPERTIES INTERFACE_COMPILE_DEFINITIONS "CGAL_LINKED_WITH_TBB;NOMINMAX" INTERFACE_INCLUDE_DIRECTORIES "${TBB_INCLUDE_DIRS}" INTERFACE_LINK_LIBRARIES "TBB::tbb;TBB::tbbmalloc;Threads::Threads") endif()